World's strangest lakes

Imagine walking through a far-flung island of forest and stumbling across a bright, pink lake. Or quietly rowing your boat through a sea of floating lotus flowers that expand as far as the eye can see. Dreamy? Yes, but also completely possible if you consider a visit to one of the world's strangest lakes.

Because lakes are mostly contained ecosystems, they have the uncanny ability to evolve in ways you might expect to come from the imagination of Dr. Seuss. Like Spotted Lake in Canada, which is considered one of the most bizarre natural wonders in the world, transmogrifying from an average-looking alpine lake into a field of gigantic green polka dots every summer.